Maybe someone with better knowledge and better hearing will chime in, but I don't really hear anything that sounds unusual. I think hear the sound you describe, but I think I hear that on all F650s....

The notes about 'ABS Removal' at the end of WayneC1's PDF (http://www.f650gs.crossroadz.com.au/Modifications/Forks/ForkNotesYZ.pdf) on the fork swap are reported to work. Some wire crimping and bulb...

This came up recently over at the Chain Gang (http://f650.com/forum/showthread.php?28190-Best-%28cheap%29-solution-for-rear-shocks-Yeah-I-would-like-to-have-an-Ohlins&highlight=shock+ohlins). I guess...